Posted via FF Mobile Well my first comment is difference in shifting. The automatic is tuned for fuel economy. Your arm and foot may not necessarily be tuned the same way. Seriously consider how you are driving and shifting the car. Check all your fluids and clean your MAF sensor. Also how many miles are on this car? Difference in tires could be a huge difference as well.

Posted via FF Mobile Well my first comment is difference in shifting. The automatic is tuned for fuel economy. Your arm and foot may not necessarily be tuned the same way. Seriously consider how you are driving and shifting the car. Check all your fluids and clean your MAF sensor. Also how many miles are on this car? Difference in tires could be a huge difference as well.

78k miles on the car. And once again its not the shifting lol, I have had standards before and had excellent mileage.

Shifting at low RPM will require more throttle input, and in turn more fuel.
Try 2 tanks shifting around 3,500rpm and see what happens.

When you mentioned the brand of tire you missed completely what I meant. Tire pressure should have been your first thought. Low pressure will absolutely drop MPG's.
Being it's later in the year you should be able to get away with running more pressure than Summer. I'd try around 35psi in all the tires, maybe a bit more if you're up to it.

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Shifting at low RPM will require more throttle input, and in turn more fuel.
Try 2 tanks shifting around 3,500rpm and see what happens.

When you mentioned the brand of tire you missed completely what I meant. Tire pressure should have been your first thought. Low pressure will absolutely drop MPG's.
Being it's later in the year you should be able to get away with running more pressure than Summer. I'd try around 35psi in all the tires, maybe a bit more if you're up to it.

Tire pressure is at 36psi just like my other Focus.

Also I drove 200miles straight on the highway and got 30 MPG... No shifting involved...

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Well i replaced the spark plugs last weekend and I've gone through about 1/2 a tank so far and its looking great. Before that plugs i calculated it at 25MPG :( and now the in car is saying 35 MPG! But i will still be doing more of what people suggested and i will calculate it by hand and post back later to tell you the results.

Going to put in a new fuel filter, oil change, and clean the MAF next.

P.S. the air filter on my model is a lifetime airfilter... WTF. cannot be changed... who designed this crap.

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